On March 4, 2018, 220 kV of the 220 kV spare ground of the 220 kV transformer substation in the Phase A circuit breaker of the 2319 circuit breaker was settled by 20 mm. The distance was more than the set value. The current distance was 820 mm.', '220 kV of Leyuan Substation 110 The A phase of the KV II mother voltage transformer is tilted by 1°, the angle exceeds the set value, and the current tilt is 3°'. This is the alarm information received by the site acceptance personnel's mobile terminal. The latest information is sent when the alarm information is sent. The device for monitoring the subsidence or tilt of substation equipment.
It is reported that some of the substations under the jurisdiction of the State Grid Xinjiang Changji Power Supply Company are complex in geological structure, and are particularly prone to ground settlement in the spring, which affects the safe and stable operation of the equipment in different degrees. The Changji Power Supply Company of the State Grid Co., Ltd. overcomes difficulties and actively innovates. From the aspects of practicality, safety, implementability, economy, etc., after many studies and tests, the foundation settlement monitoring device was successfully developed.
The device is mainly composed of a laser ranging sensor, a three-dimensional angle sensor, a communication encryption processing, a signal transceiving module, a solar battery power supply system and a mobile terminal. The device mainly adopts a set algorithm to analyze the data collected by the device and then passes the data. The signal transceiving device sends the current position data (alarm data) of the device to the mobile terminal in the form of a short message, and may also send the data to the dispatch automation monitoring background. If the ground settlement or tilt is found, the monitoring device will automatically After processing the ground settlement data or inclination data collected by the equipment, it is sent to the mobile terminal in the form of short message. The staff can grasp the ground settlement of the equipment at the first time through the mobile terminal, and take corresponding measures after judgment to reduce the abnormal situation. happened.
The successful development of the device, through the form of remote man-machine dialogue, full-duplex communication mode, with a small amount of data transmission, low power consumption, strong applicability, easy installation, real-time follow-up monitoring of the 'big advantage' in all weather. In addition, the device Another big advantage is that it has a high degree of installation flexibility. Device parameters can be set with the touch of a button on the mobile terminal, and the current device location information can be viewed in real time. Equipment that has changed on the ground can be automatically pre-warned, and can also be used for new building locations. Reference.